To answer this question, let me give you a simple analogy.
First off, I want you to imagine that no one in the world knows what baseball is or how to play. Now imagine gathering the finest soccer players or cyclists or freestyle swimmers in the world and then putting them all on a baseball diamond and telling them to play ball.
Even though they have so much athletic potential, they still won’t be able to play the game. Why? Well, first off, because they don’t know the rules. And second, they don’t know how to use the tools (the baseball bats, gloves, and ball).
There is another game that we all play: the Game of Life. Kabbalah gives us the rules and teaches us how to use the tools for this Game of Life. By practicing what we learn, we can manifest our potential and win the game.